@article{oai:nagoya.repo.nii.ac.jp:00016423, author = {Tomita, Atsuko and Hibino, Takashi and Sano, Mitsuru}, issue = {7}, journal = {Electrochemical and Solid-State Letters}, month = {}, note = {Dual functions of BaCe0.8Y0.2 O 3-α (BCY) as an electrolyte and as an anode were improved for solid oxide fuel cell (SOFC) applications. A porous Ce-rich phase with fluorite structure was formed with a depth of ~10μm from the BCY surface by vaporization of BaO from the BCY surface at 1700℃. The resulting BCY surface showed enough electronic conductivity to provide electrical collection and a high electrocatalytic activity for hydrogen oxidation. A hydrogen-air fuel cell with the BCY electrolyte exhibited reasonable performances without using an anode material between 750 and 950℃.}, pages = {A333--A336}, title = {Surface Modification of a Doped BaCeO3 to Function as an Electrolyte and as an Anode for SOFCs}, volume = {8}, year = {2005} }